add report from april, not a real meeting

meeting.md

@@ -26,5 +26,6 @@ We keep minutes of our meetings here.
  * [2021-01-26](meeting/2021-01-26)
  * [2021-02-02](meeting/2021-02-02)
  * [2021-03-02](meeting/2021-03-02)
+ * [2021-04-07](meeting/2021-04-07) (report only)
  * [monthly-report](meeting/monthly-report)
  * [template](meeting/template)

meeting/2021-04-07.md

+This is a short email to let people know that TPA meetings are suspended
+for a while, as we are running under limited staff. I figured I would
+still send you those delicious metrics of the month and short updates
+like this to keep people informed of the latest.
+
+# Metrics of the month
+
+ * hosts in Puppet: 87, LDAP: 90, Prometheus exporters: 141
+ * number of Apache servers monitored: 28, hits per second: 0
+ * number of Nginx servers: 2, hits per second: 2, hit ratio: 0.87
+ * number of self-hosted nameservers: 6, mail servers: 7
+ * pending upgrades: 0, reboots: 1
+ * average load: 1.04, memory available: 1.98 TiB/2.74 TiB, running processes: 569
+ * bytes sent: 269.96 MB/s, received: 162.58 MB/s
+ * [GitLab tickets][]: 138 tickets including...
+   * open: 0
+   * icebox: 106
+   * backlog: 22
+   * next: 7
+   * doing: 4
+   * (closed: 2225)
+
+ [Gitlab tickets]: https://gitlab.torproject.org/tpo/tpa/team/-/boards
+
+Note that the Apache exporter broke because of a fairly dumb error
+introduced in february, so we do not have the right "hits per second"
+stats there. Gory details of that bug live in:
+
+https://github.com/voxpupuli/puppet-prometheus/pull/541
+
+# Quote of the week
+
+"Quoting. It's hard."
+
+Okay, I just made that one up, but yeah, that was a silly one.